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A flat circular coil of n turns, area A ...

A flat circular coil of `n` turns, area `A` and resitance `R` is placed in a uniform magnetic field `B`. The pane of coil is initially perpedicular of `B`. when the coil is rotated through an angle of `180^@` about one of its diameter, a charge `Q_1` flows through the coil When the same coil after charge `Q_2` flows through it. then `Q_2//Q_1` is

A

1

B

2

C

`1//2`

D

0

Text Solution

Verified by Experts

The correct Answer is:
D
In second position `/_\phi=0`
`:. |Q_2|=(/_\phi)/R=0`
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DC PANDEY-ELECTROMAGNETIC INDUCTION-Level 1 Objective
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  11. A flat circular coil of n turns, area A and resitance R is placed in a...

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